Mold for casting stereotype printing plates



Dec. l5, 1931.A L. wlLLBoRG 1,836,099

MOLD FOR CASTING STEREOTYPE PRINTING PLATES Filed Nov. 18, 1929 Plan.-

Patented Dec. 15, 1931 UNITED STATES PATENT tiene.44

LOUIS WILLBORG, OF NEW YORK, N. Y., AssIGNon To P. HOE a oo., INC., oirNnW` YORK, N. Y., A CORPORATION on NEW YORK j f MOLD non. cAs'riNG s'rnnnofrYPn PRINTING PLATEs appiieation inea November 18,1929. serial No. 407,964.

' This invention relates to molds for casting stereotype plates and especially-flat stereotype plates.

I Molds of this class are 'arranged to be 5 turned to a horizontal position so they may be opened and the matrix placed therein in proper position, after which the mold is closed and turned to a vertical position for casting the plate. The thickness of flat stereotype plates is determined by the manner in which they are to be used, and it is desirable to arrange the mold so that it canbev adjusted to cast a plate'of any thickness desired. This arrangement has been met in the mold disclosed herein by a novel mechanism.

An object of the invention is to provide a device for casting flat stereotype plates in which the cover member of the mold is hinged to the bottom member and the separation between the cover and bottom members may be adj usted to suit the thickness of the plate that it is desired to cast.

It is also an object of the invention to provide a device for cast-ing flat stereotype plates that is of generally improved construction, whereby it will be simple, durable and ineX- pensive in construction, as well as convenient, practical, serviceable and efficient in its use.

Vith the foregoing and other objects 1n i view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts, and in the details of construction hereinafter described and claimed, it being understood that various changes in the precise embodiment of tl ne invention herein disclosed may be mace within the scope of what is claimed without departing from the spirit of the invention.

Certain features of the casting mold shown in the accompanying drawings and not claimed herein are claimed in the co-pending application of William F. Huck, Serial No. 407 ,952 liled November 18, 1929.

The preferred embodiment of the invention is illustrated in the accompanying drawings,

wherein:

Figure 1 shows a side view of the complete casting device except that certain portions of v the side frame, forming no part ofv the invention, are broken away; and

Figure 2 is a sectional view showing the mold as viewed on the line 2-2 on Figure 1 and in the direction of the arrow. l

Referring to the drawings, 11 indicates one of the side frames, of 'which there' are two, adapted to support the' mold, and which are held in properY spaced relation by'suitablecross members 12, 13 and 111. The mold includes a bottom member V15 and a cover member 16. Side bars-17 and 17, are secured to cross members- 19 a-nd'19wliich` pass through slots 21 andV 21 formed in the bottom member 15, and thusform a support for `the bottom member 15.Y Hand screwsf22 are the cover member 1G, thus providing a hinge A connection vbetween the cover member and the side bars. Trun'nions on' which the mold may be swung, are formed by studs 2G,.sccured to the side bars 17 and 17.' r'Rollers 27, are rO-y i tatably secured to thel studs y'26, and adapted torun on horizontal finished ways 28, on the frames 11. Guide ways 29, are formed in the side frames and are engaged by a shaft or follower 30, that'is secured to arms 31, formed on the side bars 17 and 17.` l

Cams 32, are secured toa sha'ft'33, that turns ingbea'rings formed inthe cover memberlo and are adapted to engage studs 31,

secured to the side bars 17 and 1 j An arm 35, is secured to the shaft 33v and provides 'a convenient means for locking and unlocking the cams. A means 'for locking the mold to prevent it from being moved'froin the position shown in Figure 1, is provided by Va hook 43, which is pivot-ed on a stud 44, secured tol acts to hold the mold in the position shown in 1Figurel. d

' Side gages 51, and a bottom gagel 52, form the sides and foot ot the casting chamber.

These gages may be of variable height de- .the side frame 11. The hook 43,`is provided n with a handle e5, for manual `operation andpending on-the thickness of the plate that it A is desired to cast. Adjustment to provide for this variable thickness may be made by screws 22, and it will be readily understood that when gages of lesser height are used, the screws 22,' may be screwed in, and thus raise the bottom member of the mold closer to the .v cover. The movement'of the bottom member relative to the side bars is permitted by the slots 2l and 2l. Y

A spring 54, is provided to counteract the weight of the cover, one end of the spring being secured to the cover by means of the bolt 55, and the other end being secured to the bottom member of the mold by means of the stud 56, and the nut 57. A handle 58, provides means for raising or lowering` the cover and moving theV complete mold when the two members are locked together.

horizontalposition as shown in Figure l, the cover is raised by turning it on the shaft 24, in order to open they mold to adjust the matrixv and the side gages in proper position. It is then closed and the two members locked together by operationof the handle 35. The

hook 43,' is releasedby the operation of the handle 45, and the mold is then moved forward-on the rollers 27, and along the ways, and simultaneouslyturned about the axis of the rollers,'by the follower 30 acting on the guide 29. This results in bringing the mold to a vertical position at the left hand side the frame, ready for casting the plate. After 100 the plate is cast,`the mold may be moved back tothe original position and the plate removed. Y Y

From the foregoing description, it will be understood that a mold has been provided that can. be conveniently operated to adjust .the matrix and cast the plate, and that can be adjusted to adapt it for use in casting plates of any thickness within the limits required. 110.V What I claim is: j y

l. In a mold for casting flat stereotype plates, a bottom mold member, a cover mold member, and a support hinged to one of the mold members and adjust-ably secured to the other mold member.; saidy support being arranged to permit swinging the 'mold from a substantially horizontal to a substantially verticaly position.

2. In a mold for castingriiat .stereotype plates, a bottom mold member, a cover mold member, a support hinged to the cover member, and means for adjustably securing the bottom member to the support; said support being arranged to permit swinging the mold y from a substantially horizontal to a substantially vertical position. Y

3. In a mold for casting flat stereotype plates, a bottom mold member, a cover mold member, a support to which the cover member is fastened, and adjustable means for se'- In operation, starting with the mold in theA space between the bottomv 4member and the cover member maybe varied; said support being arranged to permit swinging the mold from a substzmtially horizontal to a substantially vertical position.

5. In 'a mold for casting flat stereotype plates, a bottom mold member, a cover'mold member, a support hinged to one of the mold members and secured to the other mold member, and means for adjusting the position. of the said other mold memberwithv respect to the support, whereby the space betweenL the bottom member and the cover member may be varied; said. support being VIarranged to permit swinging the mold fromfa substantially horizontal to a substantially vertical position.

6. In aV mold for casting stereotype plates, a bottom mold member, ya cover mold member, and means hinged to the top member and adjustablyy secured to the bottom member, whereby the top member may be swung to open and close theY mold and the space'between the cover member and the bottom member may be varied for casting plates different in relative thickness; said means being arranged to permit swinging the mold from a substantially horizontal to a substantially vertical position. l i

In testimony whereof, I affix my signature.

LOUIS WILLBORG. 

